# Fileset

[REPM2025_P2-24_Sanin.pdf](https://mdr.nims.go.jp/filesets/ebe70de0-245a-4dba-9f53-efc692646629/download)

## Creator

Vitalii Sanin, Sergei Vasilenko, Oleg Budin, Olga Yurasova, Sergei Melnikov, Alexander Rzheutsky, Galina Ryzhkova, Bogdan Chernyshev

## Rights

[Creative Commons BY Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/)

## Other metadata

[CREATION AND DEVELOPMENT OF TECHNOLOGIES FOR PRODUCING RARE-EARTH METALS «GIREDMET» FOR USE IN VARIOUS INDUSTRIAL AREAS](https://mdr.nims.go.jp/datasets/d1d9dc2a-350e-46ac-b062-868d34f8c17f)

## Fulltext

Презентация PowerPointSanin V.V., Vasilenko S.A., Budin O.N., Yurasova O.V., Melnikov S.A., Rzheutsky A.A., Ryzhkova G.S., Chernyshev B.D.- Sazhin Giredmet JSCCREATION AND DEVELOPMENT OF TECHNOLOGIES FOR PRODUCING RARE-EARTH METALS «GIREDMET» FOR USE IN VARIOUS INDUSTRIAL AREASCurrently, Russian industry is consistently developing the entire technological chain for rare earth elements (REE): from mining andextraction to metal production and their integration into high-tech manufacturing.Sazhin Giredmet JSC is a leading Russian research and design institute specializing in developing new materials based on rare earthmetals (REM), their compounds, alloys, high-purity substances, and semiconductor materials.Abstract:Production Technologies for RM and REE Compounds(Hydrometallurgy: Solvent Extraction, Sorption)Giredmet conducts research on theextraction and separation of light andmedium-heavy rare earth elements(REE) from concentrates using diverseextractants. The institute has developeda technology and established anexperimental section for extracting andpurifying cerium from REE concentrates,leveraging electrochemical andextraction methods. Additionally, ahydrometallurgical technology forprocessing "black mass" (a mixture ofspent lithium-ion batteries) has beendeveloped and implemented on alaboratory scale, enabling theextraction and purification of non-ferrous metals and lithium fromassociated impurities.Sanin Vitaly — Head of Laboratory1Vasilenko Sergey  — Expert of Laboratory2Yurasova Olga — Head of Laboratory3Budin Oleg— Head of Laboratory4Melnikov Sergey — Research Director of Laboratory1Rzheutskiy Alexander — Senior Researcher of Laboratory1Ryzhkova Galina — Researcher of Laboratory1Chernyshev Bogdan — Researcher of Laboratory1Laboratory Names:Laboratory 1 — Laboratory of Metallurgical ProcessesLaboratory 2 — Laboratory of Synthesis Technology for Halide Salts of Rare and Rare-Earth ElementsLaboratory 3 — Laboratory of High-Purity Substance Production TechnologyLaboratory 4 — Laboratory of Production Technology for Rare and Rare-Earth Metals, Powders, and AlloysAuthors :Technologies and Production of Rare Metals (RM)and Rare Earth Elements (REE). Metal-Thermal Reduction.• Calciothermic technologies for producing REE• Lanthanothermic technologies for producing REE• Lithiothermic technologies for producing rare earth metals• Magnesiothermic technologies for producing RM• Al-Ca technologies for producing RM and REECalciothermic reduction technology isused to produce high-purity rare earthmetals (REMs) by reducing theirfluorides with metallic calcium at hightemperatures. A low-tonnageproduction unit for metallic Pr, Nd, Ce,Dy, and Tb is in operation.Lanthanothermy technology is used toproduce medium-heavy rare earthmetals (Sm, Eu, Yb) through thereduction of their oxides with metalliclanthanum and distillation in a single-step processThe technology involves thechlorination of rare earth metal (REM)oxides followed by the lithiothermicreduction of the resulting chlorides withmetallic lithium, enabling theproduction of high-purity Nd, Pr, Dy,and Sc."Magnesiothermic technology is used toproduce powders of refractory metals(Ta, Zr) by reducing their chlorides withmetallic magnesium.Aluminothermic-calciothermictechnology leverages aluminum’s highexothermicity and calcium’s strongreducing power to produce refractorymetals (e.g., Nb, Ta) and theircompounds.Advanced Oxide-Fluoride Electrolysis for High-Purity REMsElectrolytic production of rare earthmetals (REMs) is carried out from oxide-fluoride melts. The advantages includethe ability to obtain high-purity metals (upto 99.9%) as molten ingots and theindustrial scalability of the technology.At Giredmet, new electrolyzers are beingdeveloped and melt compositionsoptimized to produce Nd, Ce, and otherREMs with improved energy efficiencyand equipment durability.At Giredmet, new vacuum inductionmelting (VIM) and vacuum arc remelting(VAR) equipment are being developed toprocess rare earth metals into high-performance alloys. This next-stagetechnology enables the production ofultra-pure, homogeneous special-purposealloys (magnetic, superhard, corrosion-resistant) with controlled microstructureand minimal impurities.Vacuum Alloy Production: Next-Stage VIM & VAR TechnologiesBDmChernyshev@rosatom.ruContacts: